raktamokṣaṇa: what the term means and how it is translated
raktamokṣaṇa रक्तमोक्षण is an Ayurvedic technical term. It is rendered into English in 4 different ways, which is the reason this page exists: the renderings do not agree, and the difference between them changes what the term is taken to mean.
| Transliteration | raktamokṣaṇa |
|---|---|
| Devanagari | रक्तमोक्षण |
| Also written | raktamokṣa, rakta-mokshana, śoṇitāvasecana, asravisruti, śastravisrāvaṇa (instrumental subtype) |
| Category, as gathered | chikitsa |
| Grouped here under | Examination and treatment |
| Classical citations | 9 |
| Citations checked | 2026-10-07 |
How it is translated, and whether the translation holds
Each rendering is given with the source that uses it. The assessment is ours.
Bloodletting
WHO International Standard Terminologies on Ayurveda (2022) · ITA-9.6.97: 'The therapeutic measure of bloodletting (in which a specific amount of blood is removed from the body).' IAST: raktamokṣaṇam/asravisrutiḥ. Also ITA-9.6.98 śastravisrāvaṇam 'Bloodletting with a surgical instrument: Procedures for bloodletting by making small cuts or venesection'; ITA-9.7.30 raktamokṣaṇam (viṣopakramaḥ) 'Bloodletting: Removal of vitiated blood by bloodletting in the treatment of poisoning'; index also lists raktamokṣaṇa-apacāraḥ/ayogaḥ/atiyogaḥ/mithyāyogaḥ (ITA-5.76.133-136) · comparator-standard
WHO files it under 9.6 (surgical/para-surgical measures), not under 9.2 Cleansing therapy.
Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits. It is deliberately absent from the downloadable dataset, which is offered under CC BY 4.0 and invites the modification a NoDerivs licence forbids.
Bloodletting. It means the procedure of blood-letting for the therapeutic purposes for removing morbid Doṣa/ poisons with blood. Blood can be eliminated through scraping, application of horn or leech or venesection. It is practiced in poisoned blood and blood born diseases in pitta (billeous) predominant diseases and also in a few vāta (neurological) disorders.
NIA Jaipur / WHO-APW draft 'Standardization of Non-Clinical Terminologies of Ayurveda' (2011) · nia.nic.in/pdf/TERMINOLOGIES.pdf, entry raktamokṣaṇa (code printed beneath entry: SK0160; code placement in the PDF layout is ambiguous) · comparator-draft
A draft, not the 2022 WHO publication; the two must not be conflated.
Reproduced unaltered and attributed from the WHO International Standard Terminologies on Ayurveda, which is what that licence permits. It is deliberately absent from the downloadable dataset, which is offered under CC BY 4.0 and invites the modification a NoDerivs licence forbids.
Blood-letting; bleeding; venesection (Sira-Vyadhana); scarification (Pracchana)
Bhishagratna, Sushruta Samhita (1907-1911) · Sutrasthana ch. XIII, XIV; Sharirasthana ch. VIII (wisdomlib) · public-domain-translation
Bhishagratna uses 'blood-letting' and 'bleeding' interchangeably; 'venesection' only for sirāvyadha.
blood letting (Raktamokshana)
Kumbhare-Patil et al., Ayu 2016 (PMID 28827952) abstract · peer-reviewed-usage
Standard modern gloss.
The classical passages
Each citation gives its address so a reader can check it in a printed edition, our account of what the passage establishes, and the result of reading it against its source.
Sushruta SamhitaSutrasthana 14 (Śoṇitavarṇanīya):25 (as displayed on siva.sh; edition unstated) · checked against the source
शस्त्रविस्रावणं द्विविधं- प्रच्छानं , सिराव्यधनं च ॥२५॥
Instrumental bloodletting is of two kinds: pracchāna (scarification) and sirāvyadhana (venesection).
Sushruta SamhitaSutrasthana XIV (Description of blood):Unnumbered in Bhishagratna; corresponds to the sentence numbered 25 on siva.sh · checked against the source
Blood-letting, with the help of a surgical instrument, may be grouped under two distinct heads, according as scarification (Pracchana) or venesection (Sira-Vyadhana) is resorted to for the purpose.
Bhishagratna's renderings of the two instrumental subtypes.
Sushruta SamhitaSutrasthana 14:33-34 (as displayed on siva.sh; edition unstated). Both ends of the range read independently. · checked against the source
लाघवं वेदनाशान्तिर्व्याघेर्वेगपरिक्षयः । सम्यग्विस्राविते लिङ्गं प्रसादो मनसस्तथा ॥३३॥ त्वग्दोषा ग्रन्थयः शोफा रोगाः शोणितजाश्च ये । रक्तमोक्षणशीलानां न भवन्ति कदाचन ॥३४॥
Signs of correctly performed bloodletting (lightness, relief of pain, abatement of disease, mental clarity) and the claim that habitual raktamokṣaṇa prevents skin disorders, granthi, śopha and blood-borne diseases. Verse 34 verifies the Devanagari रक्तमोक्षण.
Sushruta SamhitaSutrasthana XIV:Unnumbered in Bhishagratna; matches siva.sh 33 and 34 · checked against the source
An act of complete and successful blood-letting is followed by a feeling of lightness and alleviation of pain in the affected part, by an abatement of the disease, and a general sense of cheerfulness. [...] A person, accustomed to blood letting, enjoys a kind of immunity from all types of skin diseases, sarcomata, aneurism, oedema, and diseases brought about by a vitiated condition of the blood such as, Ovarian tumour, Carbuncle, Erysipelas, etc.
Bhishagratna's English for Su.Su. 14.33-34. His 'sarcomata, aneurism' both render granthi, 'oedema' renders śopha, and the appended 'Ovarian tumour, Carbuncle, Erysipelas' are his biomedical examples of rogāḥ śoṇitajāḥ; none of these English disease names is in the Sanskrit.
Sushruta SamhitaSutrasthana 13 (Jalaukāvacaraṇīya):3 (as displayed on siva.sh; edition unstated) · checked against the source
नृपाढ्य बालस्थविरभीरुदुर्बलनारीसुकुमाराणामनुग्रहार्थं परमसुकुमारोऽयं शोणितावसेचनोपायोऽभिहितो जलौकसः ॥३॥
Leech application is the gentlest means of śoṇitāvasecana (a synonym for bloodletting), for kings, the rich, children, the aged, the timid, the weak, women and the delicate.
Sushruta SamhitaSutrasthana XIII (Usage of leeches):Unnumbered in Bhishagratna; matches siva.sh 13.3 · checked against the source
old or imbecile, or a woman, or an infant, or a person of an extremely timid disposition, or a person of a delicate constitution [...] the gentlest that can be possibly devised
Bhishagratna's rendering of the leech indication; the quote is two fragments of one sentence as returned by the fetch, so re-read the page before publishing it as a continuous sentence.
Sushruta SamhitaSharirasthana 8 (Sirāvyadhavidhi):23 (as displayed on siva.sh; edition unstated) · checked against the source
सिराव्यधश्चिकित्सार्धं शल्यतन्त्रे प्रकीर्तितः
Venesection (a subtype of raktamokṣaṇa) is declared 'half of treatment' in śalyatantra. Often misattributed to Sutrasthana 14; it is in Sharirasthana 8.
Sushruta SamhitaSharirasthana VIII (The method of Venesection):Bhishagratna's own section number 55 (NOT a Sanskrit verse number); Sanskrit verse 23 per siva.sh · checked against the source
Venesection (bleeding) properly performed is half of the treatment described in surgery like the application of Vasti-karmas (enematic measures) in therapeutics.
Bhishagratna's English for Su.Sha. 8.23; the comparison to basti is in the verse's second line, which was not separately verified in Sanskrit.
Charaka SamhitaSutrasthana 22 (Laṅghanabṛṁhaṇīya):18 (carakasamhitaonline, Trikamji numbering); Kaviratna prints 16 for this aphorism (Lesson XXII, p. 245, archive.org BIUSante_47357 leaf n347, superscript §16 after 'included under Langhana'), two BEHIND the standard; his footnotes on p. 246 also cite it as 'Verse 16' · checked against the source
चतुष्प्रकारा संशुद्धिः पिपासा मारुतातपौ। पाचनान्युपवासश्च व्यायामश्चेति लङ्घनम्॥१८॥
Charaka counts saṁśuddhi under laṅghana as fourfold (catuṣprakārā saṁśuddhiḥ) alongside thirst, wind, sun, pācana, fasting and exercise, but the verse does not name the four. Their identification as emesis, purgation, errhine and (dry) enema, with raktamokṣaṇa therefore absent, is the commentators' and Kaviratna's reading (his bracketed gloss 'viz., administration of emetics, of purgatives, of errhines or cerebral purgatives, and dry enemata'); raktamokṣaṇa is not mentioned in the chapter's Sanskrit. Relevant to the distinction between Charaka's and Sushruta's śodhana sets on that commentary-dependent basis.
Where this term does work in the theory
One concept record names this term as one of its components, and glosses it there as follows.
- Panchakarma rationale as Raktamokshana
- Bloodletting. Routinely listed among the five in later and in modern accounts. This record cites no classical passage that enumerates it among the five and no procedural passage for it: Sushruta's operative material on bloodletting sits in Sutrasthana, which is in Bhishagratna's Volume I and was not consulted here. See notKnown and contested.
Not to be confused with
- sirāvyadha / sirāvedhana
- Venesection; one instrumental subtype of raktamokṣaṇa (Su.Su. 14.25), not a synonym for the whole category.
- jalaukāvacaraṇa
- Leech application; the non-instrumental (anuśastra) subtype, indicated for the delicate and for pitta-vitiated blood (Su.Su. 13.3 and Bhishagratna ch. XIII).
- pracchāna
- Scarification; the other instrumental subtype.
- pañcakarma (Charaka's set)
- Charaka's fourfold saṁśuddhi in Su. 22.18 is vamana, virecana, śirovirecana, niruha; raktamokṣaṇa is counted as the fifth śodhana in the Sushruta/Shalya tradition. WHO 2022 ITA-9.2.2 likewise defines Panchakarma without bloodletting (its fifth is unctuous enema).
- phlebotomy (diagnostic blood draw)
- Modern phlebotomy is sampling; raktamokṣaṇa is therapeutic removal of 'vitiated' blood.
Renderings that do not hold
- blood purification / detoxification. The procedure removes blood; it does not purify the remaining blood in any mechanistic sense. The doctrinal claim is removal of duṣṭa rakta, which is a different statement.
- phlebotomy. Narrows the term to venesection and imports the diagnostic sense.
- immunity from skin diseases (Bhishagratna). 'immunity' in Su.Su. 14.34 is Edwardian English for 'do not occur'; it is not an immunological claim.
Open questions
Recorded rather than resolved. Each one is something this entry cannot currently settle.
- Confirm siva.sh verse numbers (13.3, 14.25, 14.33-34, Sha. 8.23) against the Trikamji/Acharya Nirnaya Sagar edition; the site does not name its edition.
- Whether a systematic review of raktamokṣaṇa/leech therapy exists in PubMed; the bounded search found case reports and small trials only.
How to cite this entry
Age Ayurveda Nighantu, raktamokṣaṇa
, https://nighantu.ageayurveda.com/lexicon/raktamokshana/, CC BY 4.0.
The whole lexicon is downloadable from the index.
Machine-readable source: Markdown.
Data exported 2026-10-08.
Educational reference only. A term entry explains what a word means and how it has been translated. Nothing here is advice, and nothing here describes how any condition should be treated.